Special Issue "Recent Development of Semiconductor Nanocrystals"
Deadline for manuscript submissions: closed (26 October 2023) | Viewed by 581
Interests: nanophotonics; plasmonics; on-chip micro-lasers; single-photon sources; metasurfaces; nano-waveguides; sensors; micro-fabrications
Interests: spinoptics; metasurfaces; nanophotonics; micro/nano-lasers; low-dimensional materials; photonic crystals; bound states in the continuum; topological photonics; quantum light sources; plasmonics
Colloidal semiconductor nanocrystals, such as colloidal quantum dots (CQDs) and nanoplatelets, are promising candidates of nanoscale building blocks for solution-processed optoelectronic devices and integrated circuits. Their outstanding properties have led to quantum dots being widely used in the design of small optoelectronic, optical, and quantum devices, such as light-emitting diodes, displays, detectors, waveguides, micro-lasers, and single-photon sources. However, there is still plenty of room as well as challenges when it comes to the improvement of QDs and QD nanostructures. High-quality QDs of non-blinking phenomena and long photostability under high pumping intensities are essential for micro/nano-optical and quantum devices. Although there are already continuous-wave pumping CQD lasers and electrical pumping optical gains from CQDs, on-chip (especially functional) CQD micro-lasers still rely heavily on excitation by short pulses. Most micro-fabrication technologies cause damage to QDs. Thus, it is incredibly important to develop novel micro-fabrication technologies which do not damage QDs and may be compatible with other materials, especially for metals and semiconductors. Photon emissions from QDs are usually inherently omnidirectional and randomly polarized, which seriously limits their applications in single-photon sources. Efforts should focus on developing novel physical mechanisms and designing various nanostructures to shape QD emissions, such as directions, polarizations, wave fronts, emission enhancement, and patterns.
Prof. Dr. Jianjun Chen
Dr. Kexiu Rong
Dr. Yunan Gao
Manuscript Submission Information
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- quantum dots
- single-photon emissions
- emission shaping
- emission enhancement
- electrical pumping
- compatible fabrications